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Table 2 <br /> HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS <br /> May 1990 Through February 2005 <br /> Former BP Oil 11192 <br /> Date TOC Depth to LPH Ground- Change TPH-G TPPH Benzene Toluene Ethyl- Totai MTBE MTBE TBA Comments <br /> Sampled Elevation Water Thickness water in 8260B benzene Xylenes 8021B 8260B 8260B <br /> Elevation Elevation <br /> (feet) (feet) (feet) (feet) (feet) (gg/1) (µg/1) (µgll) (}µg11) (µg11) (Ag/1) (µg11) (µg/1) (µg/1) <br /> MW-7 continued <br /> 12/22/93 6 2 t 2803 000 -21 82 0 13 110 -- 19 1 3 3 8 10 - -- -- <br /> 04/01/94 6 21 27 15 000 -2094 000 340 - 2 5 1 30 43 496 -- -- <br /> D 04/01/94 621 27 15 000 -2094 088 330 - 2 6 0 9 28 42 -- - <br /> 07/27/94 6 21 2721 000 -21 00 -006 72 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 2855 -- -- <br /> j 11/30/94 621 27 58 000 -2137 -037 140 -- ND<0 5 0 8 44 8 3 64 -- -- <br /> D 11/30/94 6 21 27 58 000 -21 37 000 140 - 0 6 1 5 9 3 69 -- - <br /> 02/15/95 6 21 2658 000 -2037 1 00 90 -- ND<0 50 ND<0 50 2 1 17 - -- -- <br /> 04/21/95 6 21 2461 000 -1840 1 97 53 - 065 ND<0 50 14 1 4 - -- -- <br /> 07/19/95 6 21 23 74 0 00 -1753 097 81 059 ND<0 50 055 ND<1 0 -- -- -- <br /> D 07/19/95 621 23 74 000 -1753 0 00 82 - ND<0 50 ND<0 50 0 54 ND<I 0 -- -- -- <br /> P 10/20/95 6 21 -- - -- -- 110 - ND<0 50 ND<0 50 ND<0 50 ND<1 0 160 -- -- Pre-purge <br /> 10/20/95 621 24 15 000 -1794 0 00 89 -- ND<0 50 ND<0 50 ND<0 50 ND<1 0 110 - -- <br /> P 04/23/96 621 -- -- -- ND<500 - ND<0 5 ND<0 5 ND<0 5 ND<0 5 150 - Pre-purge <br /> 04/23/96 621 2078 000 -1457 000 ND<500 ND<0 5 ND<0 5 ND<0 5 ND<0 5 160 -- - <br /> 07/12/96 6 21 21 18 000 -1497 -040 ND<50 - ND<0 5 ND<I ND<1 ND<1 ND<10 -- - <br /> D 07/12/96 621 21 18 000 -1497 0 00 ND<50 -- ND<0 5 ND<1 ND<1 ND<I ND<10 -- - <br /> 10/18/96 6 21 2070 000 -1449 0 00 220 -- ND<0 5 ND<1 0 ND<l 0 ND<1 0 200 -- <br /> D 10/18/96 6 21 2070 000 -1449 049 240 - ND<0 5 ND<l 0 ND<l 0 ND<1 0 200 -- <br /> 02/26/98 6 21 13 00 000 -679 770 120 -- ND<0 5 ND<l 0 ND<l 0 ND<1 0 95 -- - <br /> 07/07/98 6 21 1220 000 -5 99 0 80 Hoo - ND<0 5 ND<l 0 ND<l 0 ND<1 0 2400 -- -- <br /> 01/19/99 621 1433 000 -8 12 -2 13 3200 - ND<1 0 ND<1 0 ND<1 0 ND<1 0 3800 -- -- <br /> 07/14/99 621 13 13 000 -692 1 20 - -- -- -- -- -- __ -_ <br /> 07/26/99 621 1330 000 -709 -0 17 21000 - ND<l 0 ND<1 0 7 2 2 4 18000 -- - <br /> 10/07/99 621 1464 000 -843 -134 33000 -- ND<l 0 ND<1 0 1 1 ND<I 0 19000 - - <br /> 11192 Page 13 of 18 <br />